One year the postage rate for sending 1 ounce of mail first class was increased from 25 cents to 29 cents. The percent of increase in the 29 cent postage rate was most nearly?

Answer 1

This is a proportional situation
(increase value)/original amount = percent increase/total percent
(29-25)/25 = x/100
Solve for x

Answer 2

4÷25 your saying right

Answer 3

29/25 * 100% = 116%
% increase = 116% - 100% =